About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Neutron and X-ray Scattering in Materials Science
|
Presentation Title |
Coded Apertures for Depth Resolved Diffraction |
Author(s) |
Dina Sheyfer, Doga Gursoy, Wenjun Liu, Jon Tischler, Michael Wojcik |
On-Site Speaker (Planned) |
Dina Sheyfer |
Abstract Scope |
We develop a rapid data acquisition and reconstruction method to image the internal structure of crystalline materials using non-destructive X-ray Laue diffraction microscopy. Our method relies on scanning a coded-aperture across the diffracted beams, and a decoding algorithm to extract Laue patterns as a function of depth along the incident illumination path. This method provides rapid access to full diffraction information at sub-micrometer volume elements in bulk materials and thus can resolve locally in 3D crystal structure, its orientation and strain. Here we present the underlying theory and demonstrate the utility of this approach with micrometre-resolution depth resolving measurements of grain orientations and sizes in polycrystalline Nickel foil. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Iron and Steel, Surface Modification and Coatings |